Zobrazeno 1 - 10
of 95
pro vyhledávání: '"David W. Saxey"'
Autor:
Hamed Gamal El Dien, Shoji Arai, Luc-Serge Doucet, Zheng-Xiang Li, Youngwoo Kil, Denis Fougerouse, Steven M. Reddy, David W. Saxey, Mohamed Hamdy
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Chromian-spinel from mafic-ultramafic rocks is used as a reliable geotectonic and mantle melting indicator. Here, the authors argue that this only works partially – it can be used to assess information on mantle metasomatic processes but not petrog
Externí odkaz:
https://doaj.org/article/2177239028f94a518d626e757c349751
Autor:
Denis Fougerouse, Steven M. Reddy, Christopher L. Kirkland, David W. Saxey, William D. Rickard, Robert M. Hough
Publikováno v:
Geoscience Frontiers, Vol 10, Iss 1, Pp 55-63 (2019)
The Pb isotopic composition of rocks is widely used to constrain the sources and mobility of melts and hydrothermal fluids in the Earth's crust. In many cases, the Pb isotopic composition appears to represent mixing of multiple Pb reservoirs. However
Externí odkaz:
https://doaj.org/article/bc9cf9cdd8a64d94a5250eff8a774e67
Autor:
Katy Evans, Steven M. Reddy, Renaud Merle, Denis Fougerouse, William D.A. Rickard, David W. Saxey, Jung-Woo Park, Luc Doucet, Fred Jourdan
Publikováno v:
Geology. 51:554-558
Highly siderophile elements (HSEs), including Re and Os, are used extensively as geochemical tracers and geochronometers to investigate the formation and evolution of Earth’s crust and mantle. Mantle rocks are commonly serpentinized, but the effect
Autor:
Tommaso Tacchetto, Steven M. Reddy, Denis Fougerouse, Chris Clark, David W. Saxey, William D.A. Rickard
Publikováno v:
Geology. 50:1387-1392
Chemical heterogeneities along grain boundaries in garnet occur across a wide range of metamorphic conditions, yet the processes underlying their development remain poorly understood. Here we integrate electron backscattered diffraction (EBSD) and at
Publikováno v:
Microscopy and Microanalysis. 28:1221-1230
Well-defined reconstruction parameters are essential to quantify the size, shape, and distribution of nanoscale features in atom probe tomography (APT) datasets. However, the reconstruction parameters of many minerals are difficult to estimate becaus
Autor:
Rick Verberne, Hugo W. van Schrojenstein Lantman, Steven M. Reddy, Matteo Alvaro, David Wallis, Denis Fougerouse, Antonio Langone, David W. Saxey, William D. A. Rickard
Publikováno v:
Journal of Metamorphic Geology. 41:3-24
Autor:
Cilva Joseph, Denis Fougerouse, Aaron J. Cavosie, Hugo K. H. Olierook, Steven M. Reddy, Raiza R. Quintero, Allen Kennedy, David W. Saxey, William D.A. Rickard
Constraining precise ages for impact events is crucial in establishing Earth’s history, and several geochronometers have been developed to date impacts. We present electron backscatter diffraction (EBSD), sensitive high-resolution ion microprobe (S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8bb3024da7081f041c44ca4eaed1d95
https://doi.org/10.5194/egusphere-egu23-1082
https://doi.org/10.5194/egusphere-egu23-1082
Autor:
Steven M. Reddy, David W. Saxey, Aaron J. Cavosie, William D.A. Rickard, Timmons M. Erickson, Michael T.D. Wingate, Denis Fougerouse, M. A. Cox
Publikováno v:
Geochimica et Cosmochimica Acta. 314:381-396
To test the potential of deformation twins to record the age of impact events, micrometre-scale size mechanical twins in shocked monazite grains from three impact structures were analyzed by atom probe tomography (APT). Shocked monazite from Vredefor
Autor:
Emily M. Peterman, M. Zakaria Quadir, Steven M. Reddy, David W. Saxey, Denis Fougerouse, Michael J. Jercinovic
Publikováno v:
American Mineralogist. 106:1971-1979
To evaluate the mechanisms driving nanoscale trace element mobility in radiation-damaged zircon, we analyzed two well-characterized Archean zircons from the Kaapvaal Craton (southern Africa): one zircon remained untreated and the other was experiment
Autor:
Hope A. Ishii, Catherine A. Dukes, Anthony M. Monterrosa, Michelle S. Thompson, Lindsay P. Keller, John P. Bradley, Phillip A. Bland, Lucy V. Forman, Khalid Hattar, Nicholas E. Timms, Lydia J. Hallis, Denis Fougerouse, Luke Daly, Fred Jourdan, Mark J. Loeffler, Zakaria Quadir, Martin Lee, Roy Christoffersen, Tobias Salge, William D.A. Rickard, M. A. Cox, Steven M. Reddy, David W. Saxey, J. Aguiar, Evangelos Christou
Publikováno v:
Nature Astronomy. 5:1275-1285
The isotopic composition of water in Earth’s oceans is challenging to recreate using a plausible mixture of known extraterrestrial sources such as asteroids—an additional isotopically light reservoir is required. The Sun’s solar wind could prov